Volkswagen Golf Gti 5k Fuel Filler Tank Cap Cover 1K0201550AL

Volkswagen Golf Gti 5k Fuel Filler Tank Cap Cover is an original fuel system component designed for the precise sealing of the filler neck in 1.4 TSI petrol engines. Thanks to the factory design by Volkswagen, the cap ensures airtightness, stable mounting, and proper interaction with the tank ventilation system, which is essential for both safety and correct engine operation. This is a practical service solution for users who want to restore full functionality to the fuel filler of their sixth-generation Golf.

Specifications and technical data

• SKU: 1K0201550AL-1
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 1K0201550AL
• Substitutable numbers: 1K0201550AL, 1K0 201 550 AL
• Part type: Fuel Door
• Category: Fuel Flaps & Components

Purpose and function in the fuel system

The fuel filler cap in a Golf Mk6 with a 1.4 TSI engine is responsible for maintaining the tightness of the filler neck and protecting the tank from external contaminants. A properly selected component limits fuel vapor evaporation, supports stable pressure in the system, and reduces the risk of errors related to fuel vapor emission diagnostics. The original Volkswagen design ensures a perfect fit to the geometry of the filler neck in the sixth-generation Golf, which translates into secure tightening, proper sealing, and comfort during daily refueling.

Construction and functional features

The component belongs to the Fuel filler caps and accessories group, meaning it has been designed to work in direct contact with fuel and varying weather conditions. The cap's construction is optimized for:

• stable seating in the filler neck,
• consistent cooperation with the thread and factory seal,
• resistance to typical operational loads during daily driving. As a result, the cap allows for maintaining the functionality and tightness of the fuel supply system at a level consistent with the vehicle manufacturer's specifications.

Benefits of using an original cap

Using an original Volkswagen solution instead of universal parts or low-quality replacements reduces the risk of fitment issues and leaks. Key advantages include:

• factory fitment for Golf Mk6 with the 1.4 TSI unit,
• consistency with the design of the filler neck and ventilation system,
• maintenance of correct fuel system operating parameters. For the user, this means stable operation, no need for modifications, and easy installation in place of a worn or damaged cap.

Condition and service application

The offered cap comes from the used parts group, making it an economical service solution while maintaining the original Volkswagen design. It is a practical proposal for drivers who want to restore the efficiency of the fuel filler system after mechanical damage, loss of the cap, or detection of a leak. Thanks to the preservation of factory geometry and manufacturing standards, the cap works well as a replacement element during maintenance repairs, without the need for interference with other fuel system components. If you are planning a comprehensive repair or upgrade of the fuel filler area in your Volkswagen and need other components from the same group, such as additional caps, covers, or security accessories, check the available parts in the Volkswagen fuel filler caps and accessories category.

Safe selection of used fuel system components

When working with the fuel supply system, it is worth paying attention to the general condition of the components and their impact on tightness and fuel delivery. In the case of more complex assemblies, such as injection pumps or fuel rails, a specialist guide may be helpful. To better understand what to look for when choosing components from the secondary market, read the article Fuel delivery problems: what to look for when buying a used injection pump and fuel rails?.